The Undergarden guide for All the Mods 10 0.61 to 1.6
The Undergarden guide for All the Mods 10
Last verified for All the Mods 10 v1.6 on Oct 4, 2026 · text last changed Oct 4, 2026
A newer release (8.3) is out Guide for the current version
Also applies to:All the Mods 11 0.3.0-beta to 0.12.0-betaAll the Mons 0.3.0-beta to 1.3.0
- Sections
- 8
- Recipes shown
- 18
- Items named
- 31
- Quests covered
- 6
6 sections are written for this pack; 2 are shared from another pack's guide.
Every recipe and number here was checked against All the Mods 10 1.6's own files.
What is The Undergarden?
3 parts
The Undergarden adds a dark, subterranean dimension that sits deep below the bedrock of the Overworld. The plants down there have adapted to life without sunlight and grow anywhere regardless of light level, and the creatures that live there are plagued by the invasive Rotspawn, monsters from a chaotic, mysterious realm.[1]
This pack ships version 0.8.22 of the mod, and it has been part of the pack since an early build.[2]
What you get
- A whole new dimension to explore, build, and survive in, spread across 15 biomes.[1]
- Over 10 unique entities, plus 4 special potion effects and 1 dungeon.[1]
- Ores that have special properties when made into tools and weapons.[1]
- Over 10 music tracks and over 10 advancements to guide your journey.[1]
Getting in
Entry is portal-based. You craft a Catalyst, build a frame shaped like a Nether portal out of Stone Bricks or Deepslate Bricks, then right-click the inner bottom of the frame with the Catalyst to light it. Bricks derived from the Undergarden itself work for the frame too.[1]
Where it fits in progression
The Undergarden is mainly a mid-game gear detour in this pack. Its metals show up as accepted options across the pack's basic tools quest chapter, so a trip down there can tick off several tool and weapon milestones without touching any other mod.[3]
- Cloggrum Pickaxe and Froststeel Pickaxe are both required for a quest in "?".[3]
- Cloggrum Sword or Forgotten Sword satisfies a quest in "?", and Froststeel Sword is one option for a quest in "?".[3]
- Forgotten Pickaxe completes a quest in "?", and Utherium Pickaxe is one accepted option for a quest in "?".[3]
- Utherium Sword is the only accepted item for a quest in "?", so that one needs an Undergarden trip.[3]
The mod is not on the ATM Star quest path in this pack, so treat it as optional gear and exploration content rather than a required step.[3]
How do you get started with The Undergarden?
4 parts
The Undergarden is a dark, subterranean dimension that sits deep below the bedrock of the Overworld, with flora that grows without light, strange creatures, and invasive Rotspawn monsters causing trouble everywhere. Everything you need for your first trip is craftable in the Overworld, so let's go in order.[1]
Step one: craft a Catalyst
The Catalyst is your key to the dimension, and it's the one recipe here the pack has changed from the mod default, so check the grid below rather than any tutorial you've seen elsewhere.[1][4]
Crafting Shaped
| any gold ingot | any iron ingot | any gold ingot |
| any iron ingot | any diamond gem | any iron ingot |
| any gold ingot | any iron ingot | any gold ingot |
Recipe id: undergarden:catalyst
Changed by the pack
Step two: build and light the portal
- Build a frame in the shape of a Nether portal out of Stone Bricks or Deepslate Bricks.[1]
- Right click the inner bottom of the frame with the Catalyst to activate it.[1]
- Later on you can also use bricks derived from the Undergarden itself for the frame, which is handy if you want a return portal built from local stone.[1]
Step three: get Cloggrum gear
Cloggrum is your first Undergarden metal and the base of the whole progression, since every Forgotten tool is an upgraded Cloggrum tool. Make a pickaxe and a sword first so you can mine the dimension's ores and fight back.[4][5]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:cloggrum_pickaxe
Crafting Shaped
| any wooden rod |
Recipe id: undergarden:cloggrum_sword
A full suit of Cloggrum armor is worth the ingots too. The boots in particular stop Scintling Goo from slowing you down, which makes exploring a lot less annoying.[5]
If you want a light source that doesn't cost you torches in every pocket, the Cloggrum Lantern is cheap once you have a few nuggets.[4]
Crafting Shaped
Recipe id: undergarden:cloggrum_lantern
Step four: plan your upgrades
Once Cloggrum is sorted, there are three directions to aim for. Froststeel tools and armor are straight crafts from Froststeel Ingots, and a Froststeel Sword also ticks off a quest in "?".[3][4]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:froststeel_pickaxe
Utherium gear is crafted from Utherium Crystals, and Utherium weapons deal 1.5x damage to Rotspawn, which is exactly what you want given how common they are down there. The Utherium Sword and Utherium Pickaxe also complete a quest in "?" and a quest in "?".[3][4][5]
Crafting Shaped
| any wooden rod |
Recipe id: undergarden:utherium_sword
Forgotten gear is the top tier and is made at a smithing table by upgrading a Cloggrum tool or weapon with a Forgotten Ingot and the Forgotten upgrade template. Forgotten tools mine Undergarden blocks 1.5x as fast, and Forgotten weapons deal 1.5x damage to non-boss Undergarden mobs. A Forgotten Pickaxe also finishes a quest in "?".[3][4][5]
The upgrade template can be duplicated in a crafting grid once you own one, so you only need to find a single copy before you can kit out all your Cloggrum gear.[4]
Crafting Shaped
| any diamond gem | any diamond gem | |
| any diamond gem | any diamond gem | |
| any diamond gem | any diamond gem | any diamond gem |
Recipe id: undergarden:forgotten_upgrade_smithing_template
Unverified Where the first Forgotten upgrade template is found in this pack isn't covered by the sources available here.
How does The Undergarden work?
6 parts
Same as in the All the Mods 10 2.6 guide
The Undergarden is a dimension mod rather than a tech mod: there are no machines, no power network and no fluid or item pipes to wire up here. Its systems are a new world to explore, the ores and gear you bring out of it, and a handful of status effects that change how fights play out. The feature list is a whole dimension, over 10 unique entities, 15 biomes, ores with special properties when made into tools and weapons, over 10 music tracks, over 10 advancements, 4 special potion effects and 1 dungeon.[1]
Getting there: the Catalyst and the portal
Everything starts with the Catalyst. In this pack the Catalyst recipe has been changed from the mod default, so check the panel below rather than going from memory or an old video.[1][6]
Crafting Shaped
| any gold ingot | any iron ingot | any gold ingot |
| any iron ingot | any diamond gem | any iron ingot |
| any gold ingot | any iron ingot | any gold ingot |
Recipe id: undergarden:catalyst
Changed by the pack
- Craft the Catalyst.[1][6]
- Build a frame in the shape of a Nether portal out of Stone Bricks or Deepslate Bricks.[1]
- Right click the inner bottom of the frame with the Catalyst to light it.[1]
The Undergarden itself sits deep underground, below the bedrock of the Overworld. Its plants have adapted to grow anywhere without light, and the native creatures share the place with the invasive Rotspawn, monsters that come from a separate chaotic realm.[1]
Ores and the gear progression
The core progression loop is ore to gear to better gear. Undergarden ores have special properties once you turn them into tools and weapons, so the metal you pick matters more than a raw stat line would suggest.[1]
Cloggrum is the entry metal and covers the full kit: sword, axe, pickaxe, shovel, hoe, shield, the four armour pieces and decorative blocks. Cloggrum Boots carry their own perk, since Scintling Goo does not slow you down while you are wearing them.[5][6]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:cloggrum_pickaxe
Cloggrum storage works the way you would expect from a vanilla metal, with recipes both ways between Cloggrum Nugget, Cloggrum Ingot and Block of Cloggrum, so nothing you smelt is ever stuck in the wrong form.[6]
The next tier is Forgotten gear, and it is a smithing upgrade rather than a fresh craft. The Forgotten upgrade template takes a cloggrum weapon or tool in its base slot, and Forgotten Ingots are forged from the nuggets dropped by Forgotten Guardians. Working through it unlocks all 6 Forgotten tools.[5]
The special properties show up as tooltips on the finished gear. Forgotten tools mine Undergarden blocks 1.5x as fast, Forgotten weapons deal 1.5x damage to non-boss Undergarden mobs, and Utherium weapons deal 1.5x damage to Rotspawn. There is also a Cloggrum Battleaxe, which you get from a Forgotten that is carrying one, and it can be upgraded with a Forgotten Ingot like the rest.[5]
Status effects
The mod adds its own effects, and several of them are things monsters and traps will put on you rather than buffs you brew.[1][5]
- Brittleness: the higher the victim's armour value, the more damage they take, and the damage scales with the potion level. Heavy armour is a liability here.[5]
- Virulence: similar to poison, but does more damage at a slower rate.[5]
- Virulent Resistance: grants immunity to Virulence and suppresses its damage.[5]
- Featherweight: the victim receives increased knockback when damaged, scaling with the potion level.[5]
- Chilly: slows the victim down and makes them visually shake.[5]
- Gooey: Scintling Goo is constantly placed under the victim's feet.[5]
The Slingshot
The Slingshot is the mod's ranged system and it runs on ammo you pick up around the dimension. Anything usable in it is labelled as Slingshot ammo on the item tooltip, so you can tell at a glance what is worth carrying. Pebbles are the basic shot, but you can also load Scintling Goo Balls to annoy a target, Rotten Blisterberries, and even a Gronglet.[5]
It has three enchantments of its own. Longevity increases the Slingshot's max durability, Ricochet makes fired projectiles bounce off block surfaces, and Self Sling fires you instead of your ammo, which requires you to be standing on the ground.[5]
Other systems worth knowing
- Stoneborn will trade with you, so they are your in-dimension shop.[5]
- The Shard Torch is a torch that damages Rotspawn in its vicinity, which makes it a defensive block as much as a light source.[5]
- You can create a Forgotten Minion using a Forgotten Block and a Carved Gloomgourd, the same way you would build a golem.[5]
- Gloomgourds grow from seeds you plant, so they are a renewable farm crop.[5]
- Gwiblings are caught with a bucket rather than fought.[5]
- The Catacombs are the dimension's dungeon, and the Forgotten Guardian you need for Forgotten Ingots is the fight that gates the upgrade tier.[1][5]
Crafting odds and ends
Beyond gear, the pack's recipe set covers a full decorative and utility line: brick slabs and stairs, chiseled variants of depthrock, shiverstone and tremblecrust bricks made from their slabs, cloggrum tiles, bars and a lantern, a mogmoss rug, and a depthrock bed. Deepsoil converts both ways between its normal and coarse forms, just like dirt.[6]
Two combat consumables chain into each other: the Blisterbomb is built from Rotten Blisterberry and Twistytwig, and feeding a Blisterbomb into a Gloomgourd gives you a Boomgourd.[6]
Crafting Shaped
| Empty slot | Empty slot | |
Recipe id: undergarden:blisterbomb
Crafting Shaped
Recipe id: undergarden:boomgourd
Unverified The exact blast behaviour of the Blisterbomb and Boomgourd, mob spawn rates, ore generation heights and Slingshot damage values are not covered by the sources available for this pack, so test them in a safe spot before relying on them.
How do you progress through The Undergarden?
5 parts
The pack's quests only touch The Undergarden through the basic tools chapter. They ask for pickaxes and swords from several mods, and the Undergarden metals are some of the accepted answers. So the path below follows those quests and the in-pack recipes for each tool tier.[3]
Cloggrum
Cloggrum is the entry tier in the quest chapter. Cloggrum Pickaxe counts toward one of the tasks in a quest in "?", and Cloggrum Sword is one accepted answer for a quest in "?". Both are crafted from Cloggrum Ingots and a wooden rod.[3][4]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:cloggrum_pickaxe
Crafting Shaped
| any wooden rod |
Recipe id: undergarden:cloggrum_sword
The pack also has Cloggrum recipes for an axe, shovel, hoe, shield and a full armor set. Those are plain crafting recipes from the mod, with no pack changes shown.[4]
Froststeel
Froststeel Pickaxe is its own task in a quest in "?", next to the Cloggrum pickaxe. Froststeel Sword is one of the accepted swords in a quest in "?". Both are crafted from Froststeel Ingots and a wooden rod.[3][4]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:froststeel_pickaxe
Crafting Shaped
| any wooden rod |
Recipe id: undergarden:froststeel_sword
Forgotten
The Forgotten tools are not crafted from scratch. In this pack they are smithing upgrades of the matching Cloggrum tool, so you need to make Cloggrum first. Forgotten Sword is accepted by a quest in "?", and Forgotten Pickaxe is accepted by a quest in "?".[3][4]
Both upgrades use the Smithing Template. The pack has a recipe that makes more of them, so one template is not a one-time thing.[4]
Crafting Shaped
| any diamond gem | any diamond gem | |
| any diamond gem | any diamond gem | |
| any diamond gem | any diamond gem | any diamond gem |
Recipe id: undergarden:forgotten_upgrade_smithing_template
Utherium
Utherium Pickaxe is one of the accepted answers in a quest in "?", alongside pickaxes from other mods. Utherium Sword is the only accepted item in a quest in "?". Both are crafted from Utherium Crystals and a wooden rod.[3][4]
Crafting Shaped
| Empty slot | any wooden rod | Empty slot |
| Empty slot | any wooden rod | Empty slot |
Recipe id: undergarden:utherium_pickaxe
Crafting Shaped
| any wooden rod |
Recipe id: undergarden:utherium_sword
Pack-changed recipe
The pack changes the recipe for the Catalyst, so don't rely on recipes from other guides or the base mod for it. The recipe below is the one that applies here.[4]
Crafting Shaped
| any gold ingot | any iron ingot | any gold ingot |
| any iron ingot | any diamond gem | any iron ingot |
| any gold ingot | any iron ingot | any gold ingot |
Recipe id: undergarden:catalyst
Unverified The sources don't confirm where the ores and crystals come from, how the tiers compare in durability or damage, or whether the quests unlock each other in a set order. Check those in-game before relying on them.
How does The Undergarden work with other mods?
3 parts
The Undergarden connects to other mods in this pack through a few recipes and some quest alternatives. Wood processing is the most useful link. The others are Productive Bees recipes and a set of tool quests that accept gear from several mods.[3][4]
Sawing Undergarden wood
The pack adds Mekanism sawing recipes for three Undergarden woods: Grongle, Smogstem and Wigglewood. Each one turns the matching logs into planks and also gives you Sawdust. These are pack-added recipes, not Mekanism defaults.[4]
Sawing (mekanism)
- any grongle log
Recipe id: allthemods:mekanism/sawing/undergarden/grongle_planks
The Smogstem and Wigglewood versions work the same way.
The pack also adds Productive Trees sawmill recipes for the same three woods. They produce Grongle Planks, Smogstem Planks and Wigglewood Planks, and they use Sawdust.[4]
Sawmill (productivetrees)
2× Sawdust
- any grongle log
Recipe id: allthemods:productivetrees/sawing/undergarden/grongle_planks
Smogstem and Wigglewood have matching sawmill recipes.
Productive Bees
Productive Bees has centrifuge recipes for Undergarden materials, and they come from the mod itself rather than the pack. The recipes are named for cloggrum, forgotten, froststeel, regalium and utheric honeycombs. Each gives Wax plus one Undergarden item. The dump lists no item inputs for them, so check the recipe viewer for exactly what goes in.[4]
- Cloggrum honeycomb gives Raw Cloggrum.[4]
- Forgotten honeycomb gives Forgotten Nugget.[4]
- Froststeel honeycomb gives Raw Froststeel.[4]
- Regalium honeycomb gives Regalium Crystal.[4]
- Utheric honeycomb gives Utheric Shard.[4]
Centrifuge (productivebees)
Recipe id: productivebees:centrifuge/undergarden/honeycomb_regalium
There is also a Productive Bees bee conversion recipe that uses the Undergarden Music Disc and results in the regalium bee.[4]
Bee Conversion (productivebees)
Recipe id: productivebees:bee_conversion/undergarden/regalium_bee
Tool quests
The "basic_tools" quest chapter mixes Undergarden gear with tools from Eternal Starlight, Deeper and Darker and Aquaculture. Several quests accept tools from more than one mod.[3]
- a quest in "?" accepts the Utherium Pickaxe, or a Swamp Silver, Neptunium or Resonarium pickaxe from the other mods.[3]
- a quest in "?" has three tasks: an Eternal Starlight Glacite or Thermal Springstone pickaxe, the Froststeel Pickaxe, and the Cloggrum Pickaxe.[3]
- a quest in "?" accepts the Forgotten Sword, the Cloggrum Sword, or a Deeper and Darker Resonarium sword.[3]
- a quest in "?" accepts the Froststeel Sword, or one of several Eternal Starlight swords.[3]
- a quest in "?" accepts the Forgotten Pickaxe or a Deeper and Darker Warden pickaxe.[3]
- a quest in "?" asks only for the Utherium Sword.[3]
Which All the Mods 10 quests use The Undergarden?
2 parts
In this pack, The Undergarden shows up in one quest chapter, "basic_tools". All six quests there are about tool tiers, and none of them have a title. They are listed below by their quest ID.[3]
Most of these quests are shared with other dimension mods. You can usually hand in a tool from a different mod instead of the Undergarden one.[3]
Pickaxe quests
- a quest in "?" accepts any one of several pickaxes. The Undergarden option is the Utherium Pickaxe. The alternatives come from Eternal Starlight, Aquaculture and Deeper and Darker.[3]
- a quest in "?" lists three tasks. One takes an Eternal Starlight pickaxe, either the glacite or the thermal springstone one. The other two are the Froststeel Pickaxe and the Cloggrum Pickaxe.[3]
- a quest in "?" takes either the Forgotten Pickaxe or the Deeper and Darker warden pickaxe.[3]
Sword quests
- a quest in "?" takes any one of the Forgotten Sword, the Cloggrum Sword or the Deeper and Darker resonarium sword.[3]
- a quest in "?" takes the Froststeel Sword or one of four Eternal Starlight swords: thermal springstone, swamp silver, shattered or energy.[3]
- a quest in "?" is the only quest here with no alternatives. It asks for the Utherium Sword and nothing else.[3]
Unverified The quest data I have doesn't show the order of these quests, their dependencies or their rewards, so I can't say which to do first. Check the in-game quest book for that.
Which The Undergarden config options matter?
Same as in the All the Mods 10 2.6 guide
Unverified This pack doesn't ship a config file for The Undergarden, so there are no pack-specific values to tune here: nothing has been changed from the mod's own defaults, and there's no file to edit in the pack's config folder.
That means the dimension behaves as the mod ships it: the biomes, mobs, ores and dungeon are all there with no pack-side adjustments you need to know about before you dive in.[1]
What changed in The Undergarden between versions?
2 parts
All the Mods 10 1.6 includes The Undergarden 0.8.22, built for 1.21.1. The mod was already in the pack by All the Mods 10 0.42 or earlier, so it's a long-standing part of the pack.[2]
0.8.22 (the version in this pack)
- Forgotten are now considered undead.[7]
- There is a special dimension transition screen when you travel to the Undergarden.[7]
- Undergarden food items were added to the c:foods tag.[7]
- Fixed Underbeans, Blisterberries and Ditchbulbs not growing. If they ever refused to grow for you on an older version, this is the fix.[7]
0.8.21
- Fixed the Undergarden portal effect messing with other portals.[8]
Unverified No pack changelog entries for The Undergarden were available, so any changes the pack itself made to this mod across its releases are unverified.
Sources
- The Undergarden project page (modrinth) · official mod data
- All the Mods 10 1.6 mod list · pack file
- All the Mods 10 1.6 quests: "basic_tools" · pack file
- All the Mods 10 1.6 recipe dump: recipes making The Undergarden items · pack recipe dump
- undergarden tooltips and descriptions (English lang file) · official mod data
- All the Mods 10 2.6 recipe dump: recipes making The Undergarden items · pack recipe dump
- The Undergarden 0.8.22 changelog · changelog
- The Undergarden 0.8.21 changelog · changelog
Where this guide comes from
Written from what All the Mods 10 itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.
Guide last verified Oct 4, 2026.
Guides for other versions: 4.6 to 8.3 · 2.13 to 4.5 · 2.7 to 2.12 · 1.16 to 2.6 · 1.7 to 1.15 · 0.52 to 0.60 · 0.48 to 0.51 · 0.42 to 0.47